CVE-2017-7799

Public Exploit

Description

JavaScript in the "about:webrtc" page is not sanitized properly being assigned to "innerHTML". Data on this page is supplied by WebRTC usage and is not under third-party control, making this difficult to exploit, but the vulnerability could possibly be used for a cross-site scripting (XSS) attack. This vulnerability affects Firefox < 55.

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.57%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2017-18/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1372509 vendor advisory issue tracking exploit
http://www.securityfocus.com/bid/100377 third party advisory vdb entry
http://www.securitytracker.com/id/1039124 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2017-7799?
CVE-2017-7799 has been scored as a medium severity vulnerability.
How to fix CVE-2017-7799?
To fix CVE-2017-7799, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-7799 being actively exploited in the wild?
It is possible that CVE-2017-7799 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-7799?
CVE-2017-7799 affects Mozilla Firefox.
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